In this paper, we resort to such a unified dark universe picture, by adopting an earlier
proposal
[1]}, [2]}, [3]}, [4]},
albeit in a much broader sense. Specifically, we endeavor to deal with the plausible
perception of the dark sector being described in entirety by a Bose-Einstein condensate
(BEC) of light bosons extending across cosmological length scales. The density of the BEC,
together with its quantum potential, manifest as the effective DE and DM densities. It
is worth noting that in principle, every wavefunction comes associated with it a quantum
potential, which effectively gets added to any starting classical potential, in determining
the dynamics of the system — a fact that is often overlooked. In the scenario we focus on,
the macroscopic BEC provides the requisite wavefunction.
